Booting this 11/44

From: Daniel A. Seagraves <dseagrav_at_bsdserver.tek-star.net>
Date: Tue Aug 5 16:26:07 1997

On Tue, 5 Aug 1997, Tim Shoppa wrote:

> What message does it give you - "Halted" or "?Couldn't start CP" ?

It says
CONSOLE
xxxxx xxxxxxxxxxxxx

(The ODT start message)

>
> It's trying to boot the "default device", which is selected via some
> DIPswitches on the Unibus Adapter.
>
> It doesn't matter. But you don't plug the RA straight into those
> jacks; the RA should plug into a cabinet kit on the back of the
> drive's cabinet, then a black SDI cable should
> run between the cabinet kit on the drive cabinet and the cabinet
> kit on the CPU. Make sure the appropriate port button ("A" or
> "B") is in on the drive.

The RA has a small box on the back. Out of this comes 4 cables - 2 for
the terminator, and 2 SDI cables. Those are plugged into a small box on
the bottom of the rack-mount, with 4 SDI cables running out the back to
the controller.

>
> In other words, there must be an *even* number of cab kits involved.
> Each cab kit does a parity reversal on the cable. Nothing blows
> up if things are reversed, but you won't be able to access the drive.
>
> (There are white SDI cables, which change the requirement to an odd
> number. But I doubt you've got any white SDI cables - these were
> generally used with RA70- and RA90-type disks.)
>

I have an even number. (One drive)

> Try B DU0. If this doesn't work, you'll have to feed in a MSCP bootstrap
> via console ODT. (Or buy the DU boot ROM from DECdirect, if they've
> still got any.)

I'll go try that.
Received on Tue Aug 05 1997 - 16:26:07 BST